Poaceae
Spikelets bisexual (rarely unisexual, and if so, the spikelets similar and in the same inflorescence)
Spikelets not as in Group 13
Inflorescence branched (Fig. 47k)
Silky hairs longer than the lemmas, attached to the pedicel or the rhachilla or the backs of the lemmas around the bisexual or female florets
Leaves crowded near the base of the plant, at least 1 m long. Inflorescence up to 1 m long, drooping Cortaderia
Leaves distributed along the upright stems. Inflorescence pyramidal, erect